diff --git a/3rdp/build/GNUmakefile b/3rdp/build/GNUmakefile
index cae2a8fa721f93516ac26fe2e3a1dae5ca1d4d7a..de0835aafdf4fac50c348e84105e62d06e92789b 100644
--- a/3rdp/build/GNUmakefile
+++ b/3rdp/build/GNUmakefile
@@ -35,6 +35,9 @@ ifneq ($(os),darwin)
   endif
  endif
 endif
+ifeq ($(os),darwin)
+ JS_CONFIGURE_ARGS += '--enable-macos-target=10.11'
+endif
 # Blacklist some machines...
 
 JS_CONFIGURE_ENV += 'CXXFLAGS=$(CXXFLAGS)'
diff --git a/src/build/Common.gmake b/src/build/Common.gmake
index c5200bf6222beb454b025d5d86b8cdbae4cbe781..e20128f38728afdd3c3cf1a218f3b2f6818f0ed5 100644
--- a/src/build/Common.gmake
+++ b/src/build/Common.gmake
@@ -371,7 +371,7 @@ ifeq ($(os),haiku)
  CFLAGS	+=	-D__unix__ -DNEEDS_FORKPTY
 endif
 ifeq ($(os),darwin)
- MIN_MAC_OSX_VERSION ?= 10.9
+ MIN_MAC_OSX_VERSION ?= 10.11
  CFLAGS +=  -D__unix__ -fno-common -D__DARWIN__
  CFLAGS +=  -mmacosx-version-min=$(MIN_MAC_OSX_VERSION)
  LDFLAGS += -mmacosx-version-min=$(MIN_MAC_OSX_VERSION)